$(function(){
	var top = $("#con .con-todaytuan .biaoti").offset().top;
	$(document).scroll(function(){
		if ($(window).scrollTop()>=top) {
			$("#con .con-todaytuan .biaoti").css({"position":"fixed","width":"1198px","border":"1px solid #ccc"})
		}else{
			$("#con .con-todaytuan .biaoti").css({"position":"static","width":"1200px","border":"0"})		
		}
	})
})